Hello everyone I am new to this forum.

I have a 2008 Honda Rancher 420 ES. I was having problems with the electric shifting so I had a friend change it into a manual shift with parts from a 2009 420. Now the bike won’t start. Had no fire and fuel pump was not coming on. The fuel pump has been changed with a new one. I was told it could be the PCM/ECM because of the no fire and no fuel. I put the PCM/ECM from the 2009 manual shift bike on my bike and it now has fire and the fuel pump is working. The bike still won’t start. The part numbers on the brains were different. Could the one I have on it now from the 2009 be making the bike fire at the wrong time. We also checked compression, valves, and made sure the bike was in time.